Kingdom Animalia
Phylum Chordata
Class Archosauria
Order Saurischia
Suborder Theropoda
Infraorder Coelurosauria
Superfamily Maniraptoriformes
Family Tyrannosauroidea
Genus Tyrannosaurus
T. rex was a huge
carnivore that lived during the late
Cretaceous period, about 85 million to 65
million years ago. Until recently, it was the biggest known carnivorous dinosaur.
Tyrannosaurus rex was a fierce
predator. They walked on two powerful legs and had a huge head with large teeth and well-developed jaw muscles. It had tiny arms with two fingers each. They had three large toes, all equipped with claws. They had a slim, stiff
tail that provided balance and allowed quick turns. They were up to 40 feet and weighed 5 to 7
tons.
Tyrannosaurus rex probably lived in forests, where they could find plenty of food. They could see and smell well. T. rex was a fairly smart dinosaur. They appear to only have cared for their young for a very short time. They appear to have been
solitary dinosaurs. Their favorite food source was the
Triceratops.